That would be cheap! Home made laptops are expensive or huge and barely portable. If you want a bit better and thought out, check out MNT Reform laptops: https://www.cnx-software.com/2024/12/31/mnt-reform-next-open-source-rk3588-modular-12-5-inch-laptop/
It starts at $1100
- ARM
- Fully FOSS, with 3d printable parts
- They are thick, still look home built compared to mainstream laptops
- CEO is on Mastodon: https://mastodon.social/@mntmn
It wasn't really hard to find the source and some background about this map, I literally typed only "family types in europe map" in ddg, and found some more info:
An old reddit thread with some interesting related discussion
Full resolution uncropped map:
Source of the map is this opinion article: https://archive.nytimes.com/opinionator.blogs.nytimes.com/2012/07/17/family-ties-3/
So the "legend" in the post is not exactly the same as the one from the research.